Alternative ways of controlling camera, other functions
Go into Camera View Numpad 0.
Enable Lock Camera to View.
Press N or open the Controls Region (or click on the triangle at the top right of the 3D vieport), in the view tab enable Lock Camera to View.

Then you can naviage like you do with other views or using the numeric pad.
Numpad 4 and Numpad 6 will rotate left right.
Numpad 8 and Numpad 2 will rotate up and down
Numpad + and Numpad - willmove the camera forward and back
For Version 7.9: